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Class Information
Number: 423/239.1
Name: Chemistry of inorganic compounds > Modifying or removing component of normally gaseous mixture > Nitrogen or nitrogenous component > Utilizing solid sorbent, catalyst, or reactant
Description: Process in which the treating material is a solid and functions to (a) modify a component, (b) attract and retain a component, or (c) react with and chemically change a component.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5391530 |
Catalyst for removing nitrogen oxides from a waste gas, and process for the production of the catalyst |
Feb. 21, 1995 |
| 5384110 |
Exhaust gas cleaner and method of cleaning exhaust gas |
Jan. 24, 1995 |
| 5382352 |
Conversion of NO.sub.x in FCC bubbling bed regenerator |
Jan. 17, 1995 |
| 5382418 |
Process for removing pollutants from combustion exhaust gases |
Jan. 17, 1995 |
| 5380499 |
Combined heat exchanger and ammonia injection process |
Jan. 10, 1995 |
| 5378442 |
Method for treating combustion exhaust gas |
Jan. 3, 1995 |
| 5378443 |
Method for reducing emissions when burning nitrogen containing fuels |
Jan. 3, 1995 |
| 5376346 |
Method of reducing the destruction of ozone in the earth's stratosphere by the removal of chlorine, chlorine monoxide radicals, and catalytic aerosols |
Dec. 27, 1994 |
| 5370849 |
Metal chelate process to remove pollutants from fluids |
Dec. 6, 1994 |
| 5370850 |
Process for catalytically reducing nitrogen oxides in combustion exhaust gases |
Dec. 6, 1994 |
| 5366708 |
Process for catalytic reaction of gases |
Nov. 22, 1994 |
| 5366711 |
Process for the oxidative purification of waste gases containing nitrogen oxides |
Nov. 22, 1994 |
| 5362463 |
Process for removing NO.sub.x from combustion zone gases by adsorption |
Nov. 8, 1994 |
| 5362464 |
Method for removing sulfur oxides |
Nov. 8, 1994 |
| 5350435 |
Soil fertilization method |
Sep. 27, 1994 |
| 5348716 |
Process for purifying a gas containing nitric oxide |
Sep. 20, 1994 |
| 5344628 |
Method for introducing and metering a liquid treatment medium in combustion processes |
Sep. 6, 1994 |
| 5344629 |
Reducing Z.sub.20 emissions |
Sep. 6, 1994 |
| 5344631 |
Process for the separation of undesirable constituents from a waste gas |
Sep. 6, 1994 |
| 5340554 |
NOx removal process |
Aug. 23, 1994 |
| 5336476 |
Process for removing nitrogen oxides in exhaust gases to nitrogen |
Aug. 9, 1994 |
| 5326736 |
Amorphous alloy catalysts for conversion of exhaust gases to harmless gases |
Jul. 5, 1994 |
| 5318755 |
Method and apparatus for cleaning flue gases |
Jun. 7, 1994 |
| 5314673 |
Process for the conversion of N.sub.2 O |
May. 24, 1994 |
| 5312606 |
Process for the sorption of residual gas by means of a non-evaporated barium getter alloy |
May. 17, 1994 |
| 5312607 |
Process for the sorption of residual gas by means by a non-evaporated barium getter alloy |
May. 17, 1994 |
| 5308810 |
Method for treating contaminated catalyst |
May. 3, 1994 |
| 5304362 |
Method in cleaning flue gas in a PFBC plant including a gas turbine driven thereby |
Apr. 19, 1994 |
| 5300269 |
Catalytic decomposition of dinitrogen monoxide which is pure or present in gas mixtures |
Apr. 5, 1994 |
| 5300270 |
Hot-side electrostatic precipitator |
Apr. 5, 1994 |
| 5298230 |
Process for the efficient catalytic reduction of nitrogen oxides |
Mar. 29, 1994 |
| 5296206 |
Using flue gas energy to vaporize aqueous reducing agent for reduction of NO.sub.x in flue gas |
Mar. 22, 1994 |
| 5294409 |
Regenerative system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream |
Mar. 15, 1994 |
| 5294419 |
Method for removing nitrogen oxides and organic chlorine compounds from combustion waste gas |
Mar. 15, 1994 |
| 5294420 |
Process for the desulfurization and denitrification of a waste gas containing halogen-containing materials |
Mar. 15, 1994 |
| 5294421 |
Method for catalytically purifying exhaust gas |
Mar. 15, 1994 |
| 5294422 |
Process for purification of rare gas |
Mar. 15, 1994 |
| 5294584 |
Process for producing a denitration catalyst |
Mar. 15, 1994 |
| 5292991 |
Process for removal of hydrocarbons carbon manoxide, and oxides of nitrogen from oxygen-containing waste gas using molecular sieve-palladium-platinum catalyst on a substrate |
Mar. 8, 1994 |
| 5290530 |
Method of cleaning exhaust gas |
Mar. 1, 1994 |
| 5286467 |
Highly efficient hybrid process for nitrogen oxides reduction |
Feb. 15, 1994 |
| 5283055 |
Process using novel catalysts for the selective reduction of nitrogen oxides |
Feb. 1, 1994 |
| 5281403 |
Method for converting urea to ammonia |
Jan. 25, 1994 |
| 5275792 |
Method of removing NO.sub.x from NO.sub.x -containing gas |
Jan. 4, 1994 |
| 5271915 |
Method for processing nitrogen oxide gas |
Dec. 21, 1993 |
| 5270279 |
Production process of formed activated coke for SOx and NOx removal having high NOx-removing ability |
Dec. 14, 1993 |
| 5270025 |
Methods for controlling N.sub.2 O emissions and for the reduction of NO.sub . .sub.x emissions in combustion systems while controlling N.sub.2 O emissions |
Dec. 14, 1993 |
| 5262138 |
Process for NO.sub.x abatement |
Nov. 16, 1993 |
| 5237939 |
Method and apparatus for reducing NOx emissions |
Aug. 24, 1993 |
| 5238890 |
Exhaust gas purifying catalyst and an exhaust gas purifying method using the catalyst |
Aug. 24, 1993 |
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